UnmanagedImageSetPixel Method (Int32, Int32, Color)

public void SetPixel(
	int x,
	int y,
	Color color
)

Public Sub SetPixel ( 
	x As Integer,
	y As Integer,
	color As Color
)

Parameters

x

Type: SystemInt32
X coordinate of the pixel to set.

y

Type: SystemInt32
Y coordinate of the pixel to set.

color

Type: System.DrawingColor
Color to set for the pixel.

Note
For images having 16 bpp per color plane, the method extends the specified color value to 16 bit by multiplying it by 256.

For grayscale images this method will calculate intensity value based on the below formula:

0.2125 * Red + 0.7154 * Green + 0.0721 * Blue

Reference